background image

3

One Year Warranty limited solely to repair or replacement; no warranty of merchantability or fitness for a particular purpose.  

Product is warrantied to be free of defects in materials and workmanship for the normal life of the product.  

In no event shall Gardner Bender be liable for incidental or consequential damage.

800.624.4320 • Milwaukee, WI 53209 • gardnerbender.com

GAR_TL_077_1118_GDT-311

3.1 AC VOLTS
There are two ranges for measuring AC voltage: 200 V and 500 V. For more accurate measurements under 200 volts, use the 200 Volt setting.
1. Connect the black test lead to the “COM” terminal and the red test lead to the “V/

Ω

” input terminal.

2. Set the function/range switch to the appropriate AC V range. With AC Voltage, the polarity of the test leads is not a factor.
NOTE: It is best to touch one of the test leads to ground or Neutral first and then touch the 2nd test lead to the hot wire.
3. Touch the test leads to the circuit under test.
4. Read the value of the measurement displayed.
5.  Typical AC Voltage measurements include wall outlets, appliance outlets, motors, light fixtures and switches.

3.2 DC VOLTS
There are five ranges for measuring DC voltage: 200m V, 2000m V, 20 V, 200 V, and 600 V. For more accurate measurements,  

use the lowest range possible without exceeding the value.
1. Connect the black test lead to the “COM” terminal and red the test lead to the “V/

Ω

” input terminal.

2. Set the function/range switch to the appropriate DC V range.
3.  Touch the test leads to the circuit under test.Touch the black (common) test lead to the negative DC source first and  

red (positive) test lead to the “live” source second.

4. Read the value of the measurement displayed. If the leads are reversed a "-" indicator will appear on the display.
5. Typical DC Voltage measurements include car batteries, automotive switches and household batteries.

3.3 RESISTANCE
There are five ranges for measuring resistance 200, 2000, 20K, 200K and 2000K Ohms.  

For more accurate measurements use the lowest range possible without exceeding the value.

WARNING

  When measuring resistance always make sure the power is off.

1. Connect the black test lead to the “COM” terminal and red the test lead to the “V/

Ω

” input terminal.

2. Set the function/range switch to the appropriate resistance (ohms) range.
3.  Touch the test leads to the resistor or non-energized component to be measured. Use the 2000K range when testing for resistance values in electronic 

components such as resistors and potentiometer. If the value of the component falls within the range of another setting, reset the function/range switch  

to that setting for a more accurate reading.  

4. Read the value of the measurement displayed. With resistance measurements, the polarity of the test leads is not a factor.
5. Typical resistance/continuity measurements include resistors, potentiometer, switches, extension cords and fuses.

4. BATTERY REPLACEMENT

Note: When the battery’s voltage drops below the operating voltage, the mark “

” will appear on the LCD to indicate the the batteries must be replaced.

Caution: When changing the battery, disconnect the test leads from the circuit completely. Turn the meter off before removing the batteries.
1. Remove the screws in the back cover of the tester and carefully separate the back cover from the front.
2. Remove the battery from the contacts, noting the polarity of the battery terminals and contacts.
3. Replace with one fresh 9 volt battery.
Note: Do not use rechargeable or lithium batteries in this unit.
4. Carefully replace the back cover and tighten the screws. Do not overtighten the screws as this may strip the threads in the tester housing.

Resistance

DC Volts

AC Volts

3.0 OPERATING INSTRUCTIONS

DIAL SETTINGS

Reviews: